Forming-machine



A. .I. H. KUHSIEK. FORMING MACHINE. APPLICATION FILED 020.19. me.

4 SHEETS-SHEET I.

wupnltoz Patented Nov. 16, 1920;

A. .I. H. KUHSIEK. FORMING MACHINE. APPLICATION FILED DEC. I9, 1916- Patented Nov. 16, 1920. 4 SHEETS-SHEET 2- FIG. 6

A. J. H. KUHSIEK. FORMING MACHINE. APPLICATION men DEC.19.1916.

1 359,255.- Patented Nov. 16

1920. 4 SHEETS-SHEET 3- (FIG. 5

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A. J. H. KUHSIEK.' ronmmc M ACHINE. APPLICATION FILED DEC. 19, I9I6.

1,359,255, 1mm N0v.1 6,1920.

4 SHEETS-SHEET 4.

FIGS

UNITED STATES PATENT OFFICE.

ALBERT J. H. KUHSIEK, OF NEW YORK, N. Y., ASSIGNOR TO EDWARD V. HARTFORD CO.

INC., A CORPORATION OF NEW YORK.

FORMING-MACHINE.

Specification of Letters Patent.

Patented Nov. 16, 1920.

Application filed December 19, 1916. Serial No. 137,810.

This invention relates to a forming machine, and particularly to a forming machine adapted for the manufacture of auto- .mobile bumpers, of the so called springtype, wherein the bumper yields bodily under impact. In this type of bumper the body further comprises a resilient bar or member bent over intermediatev the ends thereof to form yieldable loops or end members, each of which bent over portion may have formed adjacent thereto an auxiliary loop to act supplementary to the first mentioned loop. The free end of each loop member, whether it be primary or supplementary, is adapted for attachment to a support. The type of bumper in question may be of the general character such as disclosed in a patent to Magut-h, #1,194,405 of August 15, 1916, and in the patent to Fageol, #1,202,69O of October 24, 1916.

The essential features of my invention will hereinafter be described and summarized in the appended claims.

Like reference characters refer to like parts throughout the several figures.

Figure 1 is a plan view of a machine embodying the features of my invention, showing the relative position of the parts, at the beginning of the operation of forming the loops in the yieldable members. Fig. 2 shows the machine parts after the loop has been formed. Fig. 3 shows the relative position of the parts after taking the first step in dismembering the same'upon the comple tion of the loops in the bar member. Fig. 4 illustrates the position of the forming arts after the formed bar has'been removed.

ig. 5 is aviewtaken on line aa of F1g. 2. Fig. 6 is a plan of one of the forming plates as taken on line 0-0 of Fig. 7 showing said plate in detail free of the associated parts. Fig. 7 is asection taken on line b-t of Fig. 2. Fig. 8 is a section as taken on line (k d of Fig. 6, including certain parts shown in Fig. 7 not shown in Fig. 6. Figs. 9 and 10 illustrate modifications of the forming members shown in the other figures.

The machine embodying my invention, such as shown in the drawings, comprises a bed plate 1, suitably supported by legs 2. A shaft 3 is suitably journaled underneath the bed plate 1, and carries at one of its ends a pulley 4, while at the other end thereof is secured a beveled gear 5 adapted to mesh with a hke gear 6 horizontally mounted underneath the bed plate 1. The spindle upon which the gear 6 is carried is rigidlysecured I to a turn table 7 mounted flush with the upper surface of the bed plate 1. A stationary arcuate forming member 8 is fastened upon the bed plate 1 by any suitable means such as bolts. The forming member 8 is posi tioned parallel with. the longitudinal axis of the bed plate and has associated therewith a latch member 10 which may comprise a spindle member mounted between bearings 11. A guide member 12, positioned substantially perpendicular to the rear edge of the forming member 8 and adjacent the latch member 10, extends-across the bed plate 1 having its ends suitably supported upon the bed plate. A forming member 13 having one of its ends concentrically pivoted upon the turn table 7 carries at its free end a locking handle 9, which is adapted to cooperate with the latch member 10 so that when the member 13 is pushed to its extreme inward position these parts engage, thus maintaining said-member" in its operated position until later released. Pivotally mounted intermediate the ends of the forming member 13 is an operatingrlever 14:, comprising .a forming block or portion 15,'which terminates in a handle 16. Projecting laterally from the lever 14 is a stop arm 17 which is adapted to engage the lower surface of the forming member 13 when the latter is provided with adjacent cutaway portions or moved to an operated position, as shown in recesses 18, which permits the using of tongs or a like instrument in removing the bar member 20, after having been given the desired conformation. mounted upon the turn table 7, is positioned to cooperate with the rounded end of the .105 ,A roller 21, rotatably of the member 20, so as to form thestraight formingmember 13. A forming block 22 is secured to the turn table 7 in any suitable manner such as by a bolt 23 passing through a lug portion 24 of said block 22. The block 22 is comprised of two pieces 25 and 26, ad-

justably associated with each other by means of a plate 27 and plug 28. The piece 26 may be comprised of two parts 26 and 2-6, the latter of which is adjustably maintained in a complementally shaped recess formed in the adjacent edge of the piece 25. The parts 26 and 26 may be fastened together in any suitable manner, as by swaging or the like, but it is preferred to have them separate because the part 26 may be more easily replaced if for any reason it is desired to do so. The plate 27 is riveted to the piece 26,

or bar is first heated to a high temperature so as to render it easily pliable, and it is placed upon the forming table in somewhat the position shown in Fig. 1. The next step in the operation then consists in moving the forming member 13 to its extreme operated position. This is accomplished by means of applying force to the handle 16 of the lever 14 and forcing the member 13 backward until the locking devices 9 and 10 engage to maintain the forming memberin its extreme. operated position, as shown in Figs. 3 and 4. The engagement of the members 9 and 10 is effected by simply rocking the lever 9 upon its pivot until the hook portion thereof engages with the spindle 10. T O'Wer is now applied, by means of the pulley 4, for a short period. The appl cation of this power continues for a period only sufficiently long to permit the rotation of the turn table 7 so as to bring the forming block 22 into the position shown in Figs. 2 and 3. It may be mentioned that, due to the pliability of the yieldable member 20, the looped portion 40 thereof is formed by a smoothing or ironing operation of the roller 21 about the rounded end of the forming member 13. The relative movement of these two parts is such that a rather sharp bend or curve 41 is made in the member 20. On account of the comparatively heavy weight of the fo ming block 22, augmented by the parts carried thereby, upon the rotationof the turn table 7, this block attains sufiicient momentum to bend in the loose end portion 42 adjacent the loop portion 40. The block 22 in this position, due to the method of mounting, friction of the engaging parts, etc'., remalns of itself substantially in the position shown in Figs. 2 and 3.

Ifthere is a tendency to cause the dislocation of the block from this position upon the rearward movement of the forming member 14, the block 22 may be held in place by the machine operator.

The next step in shaping the bar member 20 is making the ogee section 43. This is eifectuated by drawing the forming member 14 in a backward direction, and with considerable force, so as to strike against the forming member 22 in a forcible manner. This hammer-like action causes the n aterial in the bar 20 to assume the shape shown in Figs. 2 and 3. It will be noted that part of the ogee curve 43 is produced by an ironing method effected by the forming member 14 turning about its pivot with the adjacent portion thereof cotiperating with the complemental portion of the piece 26 of the forming block 22.

In the formation of the supplemental loop.

43, a considerable portion of the free end thereof is left in a straight condition extending substantially at right angle to the arouate portion of the bar 20. This straight portion forms a means of attachment for securing the bumper to the channel members of the chassis.

The two looped'portions are now formed in the member 20, and to remove said memberfrom the machine, the plug 28 is withdrawnby operating the lever 30. Thisfpermits the pieces 25. and 26 of the block 22 to assume a closer relation, thereby creating space between the fixed end of the member 14 and the rounded contacting surface of the member 26. It will be noted that the turn table 7 may have been rotated in reverse direction, by reversing the power applied to the pulley 4, but this is not desirable because, in practice, it has been found that this reverse rotation of the table 7 in many instances, causes a deformation of themember 20. By gripping the bar 20 with pliers, the jaws of which may be'inserted in'the recesses 18, said bar may be removed. Fig. 4 illustrates the respective relation of the various forming members after the bar 20 has been removed. These parts may be restored to normal position and another bar 20 inserted, which is similarly shaped by repeating the cycle of. operations above described.

bumper in each of the modified forms is substantially identical with the method described in manufacturing the bumper in the first instance, andit' 1sv thought-a detailed description thereof is unnecessary. It will be apparent from the drawings that the only essential difference in the various forms of bumpers disclosed is effected by simply changing the conformation of the forming surface of the movable forming members.

Upon the removal'of the bar 20 from the machine, it is tempered in any approved manner such as placing it in an oil bath while heated to the proper degree. The bar, after being taken from the oil bath, goes through a smoothing process such as being subjected to a sand blast to remove any scale found upon surface thereof. After this operation the bar 20 is given a finishing coat of either japan or nickel or a combination of both.

\Vhile I have illustrated and described certain specific embodiments of my invention, I do not desire tolimit myself to the precise constructions shown, but my invention may be changed and altered without in any way detracting from the spirit and scope of same.

Having thus described my invention,what I claim as new herein and desire to secure by Letters Patent, is:

l. A machine of the character described, consisting of a bed plate, an arcuate stationary forming member secured thereto, a complemental forming member pivoted at one end and operably associated with said stationary member, operating means for bringing said movable forming means into engagement with the stock to be formed, locking means for holding said movable forming means in an operated position, means adapted to cooperate with the pivoted end of said movable forming means to form a loop, a forming block adapted to assist in the formation of a supplemental loop adjacent said first mentioned loop.

2. A machine of the, character described consisting of a bed plate, an arcuate stationary forming member secured thereto, a complemental pivoted forming member, a

. pivoted member carried thereby for actuat-.

ing the said pivoted forming member into operative position, a pivoted forming block adapted to cooperate with said forming members, said forming block having a forming surface adapted to cooperate with said pivoted forming member whereby a loop may be made in a piece of work subjectedthereto, and said block having another forming surface cooperating with the pivoted actuating member to form a second loop.

3. A machine of the character described, consisting of a bed plate, an arcuate stationary forming member secured thereto, a complemental forming member pivoted at one end, a member for actuating said pivoted member into operative position, a pivoted forming block adapted to cooperate with said formingmembers, said forming block havlng a primary and secondary formlng surface, the primary surface cooperating with the complemental forming member to form a loop, and the secondary forming surface cooperating with the actuating member to form a second loop.

in A' machine of the character described, consisting of a bed plate,-an arcuate stationary forming member secured thereto, a complemental forming member pivoted at one end and operably associated with said stationary member, operating means for 5. In a forming machine of the character.

described, means for giving the major portion of a resilient bar member an arcuate shape, said means embracing a stationary and a movable complementally shaped forming member, means for bending said bar about the end of said complementary forming member to form a loop, and to form a straight portion adjacent said loop, a member for actuating said complementary forming member, and cooperating with the bending member to form a second loop and a straight portion adjacent said second loop.

6. A machine of the character described, consisting of a bed plate, an arcuate stationary member secured thereto, a complemental forming member pivoted at one end and operably associated with said stationary member, operating means for bringing said movable forming means into engagement with the stock to be formed, locking means for holding said movable forming. means in an operated position, a turn table carrying means adapted to cooperate with the pivoted end of said movable forming member, whereby upon the rotation of said turn table a loop is formed in the stock contacting therewith, and a forming block rotatably secured to said turn table and adapted to function inthe formation of a second loop in said stock.

7. A machine of the character described, consisting 'of a bed plate, an arcuate stationary member secured thereto, a complemental forming member pivoted at one end and operably associated with'said stationary member, operating meansfor bringing said movable forming means into engagement with the stock to be formed, locking means for holding said movable forming means in an operated position, a turn table carrying means adapted to cooperate with the pivoted end of said movable forming member, Whereby upon the rotation of said turn table a loop is formed in the stock contacting therewith, and a forming block rotatable secured to said turn table and adapted to function in the formation of a second loop in said stock,

said block being provided with adjustable means for releasing a completely formed stock.

r 8. A machine for forming a section of an automobile bumper from a flat strip of resilient material comprising a fixed forming member, a complemental forming member mounted tocooperate With said fixed member to impart an arcuate conformation to a' portion of the material, means for functioning said complemental forming member embodying a forming block, and means for bending the remaining portion of said material relatively to the arcuate portion thereof to form an elongated loop, said latter means embodying a surface complemental to that of said forming block whereby said block may be actuated to cooperate therewith to form an attaching end for said bumper section.

ALBERT J. H. KUHSIEK. 

